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Plant and Equipment
9 Months Ended
Sep. 30, 2011
Plant and Equipment [Abstract] 
Plant and Equipment
7.           Plant and Equipment
 
   
September 30, 2011
  
December 31, 2010
 
   
Cost
  
Accumulated depreciation and write downs
  
Net
  
Cost
  
Accumulated depreciation and write downs
  
Net
 
                    
Concordia, Mexico
 $18,185  $87  $18,098  $18,185  $63  $18,122 
Awak Mas, Indonesia
  119   91   28   119   91   28 
Mt. Todd, Australia
  1,298   668   630   1,110   494   616 
Corporate, United States
  422   361   61   355   312   43 
   $20,024  $1,207  $18,817  $19,769  $960  $18,809